# US 2026/0083884 A1 · Ultrahydrophobic coatings on device cutting elements

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- Number: US 2026/0083884 A1
- Document ID: US20260083884A1
- Status: Published application
- Kind: A1
- Application number: 19/409,596
- Filed: 2025-12-04
- Published: 2026-03-26
- Earliest claimed: 2021-04-16
- Assignees: Gyrus ACMI, Inc. d/b/a Olympus Surgical Technologies America
- Applicants: Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America
- Inventors: Kester Julian Batchelor; Teo Heng Jimmy Yang
- Web page: https://patentgrep.com/patent/US20260083884A1

## CPC

- A61L 31/10: Macromolecular materials
- A61B 17/29: Forceps for use in minimally invasive surgery
- A61B 18/082: {Probes or electrodes therefor}
- A61B 18/1402: {Probes for open surgery}
- A61B 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod}
- A61B 18/1482: {having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy}
- A61B 2018/0013: {non-sticking}
- A61B 2018/00404: {Blood vessels other than those in or around the heart}
- A61B 2018/00601: {Cutting}
- A61B 2018/00607: {Coagulation and cutting with the same instrument}
- A61B 2018/0063: {Sealing}
- A61B 2018/1407: {Loop}
- A61B 2018/1412: {Blade}
- A61B 2018/1455: {having a moving blade for cutting tissue grasped by the jaws}
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Various embodiments disclosed relate to a non-stick layer for cutting elements on electrosurgical cutting tools. The present disclosure includes systems, devices, and methods of making and using a non-stick layer on cutting elements. The non-stick layer can include coatings, surface structures, or combinations thereof. In one example, the medical device includes a hydrophobic coating with a hydrophobic nanoscale physical structure. In one example, the medical device includes a heated cutting assembly, such as a resistive heated cutting assembly.

## Claims

### Claim 1

A medical cutting device comprising:
a longitudinal shaft having a distal portion and a proximal portion, the distal portion including:
a cutting channel extending distally from the proximal portion of the longitudinal shaft and defining a lumen therethrough;
a surgical jaw coupled to the distal portion of the shaft, the surgical jaw comprising:
a cutting blade configurable for movement in and out of the channel;
one or more electrode plates, wherein the one or more electrode plates are electrically isolated from the cutting blade; and
an arrangement of homogenous hydrophobic physical structures defining adjacent like-height peaks interposed by corresponding like-depth valleys such that the adjacent peaks are separated by a uniform pitch at least partially covering the cutting blade and an interior surface of the lumen defined by the cutting channel.

### Claim 2 (depends on 1)

The medical cutting device of claim 1, wherein the hydrophobic physical structures are part of an external layer in a plurality of laminate layers.

### Claim 3 (depends on 1)

The medical cutting device of claim 1, wherein the hydrophobic physical structures are part of an external coating that is layered over an insulator coating on a heating element.

### Claim 4 (depends on 1)

The medical cutting device of claim 1, wherein the hydrophobic physical structures are part of a bulk material that forms the cutting blade.

### Claim 5 (depends on 3)

The medical cutting device of claim 3, wherein the hydrophobic physical structures are part of a bulk material that forms the heating element.

### Claim 6 (depends on 1)

The medical cutting device of claim 1, wherein the hydrophobic physical structures are part of a coating that covers at least a portion of the cutting assembly.

### Claim 7 (depends on 1)

The medical cutting device of claim 1, wherein the heating element is separated from the cutting blade by an isolation layer comprising one or more dielectric structures.

### Claim 8 (depends on 7)

The medical cutting device of claim 7, further comprising an arrangement of homogenous hydrophobic physical structures on the cutting blade, on the cutting assembly, and on the isolation layer.

### Claim 9 (depends on 7)

The medical cutting device of claim 7, wherein the arrangement of homogenous hydrophobic physical structures has a lower surface adherence than the isolation layer.

### Claim 10 (depends on 1)

The medical cutting device of claim 1, wherein individual ones of the hydrophobic physical structures each have an equal height and an equal pitch.

### Claim 11 (depends on 1)

The medical cutting device of claim 1, wherein the arrangement of homogenous hydrophobic physical structures is configured as a Gaussian hole array.